The SDM-6000 is a versatile maintenance tool that automates the service of a GX-6000 portable gas monitor. This docking station can be used as a stand alone device for charging, calibration and bump testing, with all records stored automatically for future upload to a PC via SD card. One power source and one set of calibration equipment can provide service for up to 10 SDM-6000 calibration stations. Up to 10 calibration stations can also be connected to one PC for automated charging, calibration, bump testing and archiving of data.